EP1438205A1 - Heating and/or air-conditioning unit with moving flaps for the passenger compartment of a motor vehicle and motor vehicle with said unit - Google Patents

Heating and/or air-conditioning unit with moving flaps for the passenger compartment of a motor vehicle and motor vehicle with said unit

Info

Publication number
EP1438205A1
EP1438205A1 EP02747534A EP02747534A EP1438205A1 EP 1438205 A1 EP1438205 A1 EP 1438205A1 EP 02747534 A EP02747534 A EP 02747534A EP 02747534 A EP02747534 A EP 02747534A EP 1438205 A1 EP1438205 A1 EP 1438205A1
Authority
EP
European Patent Office
Prior art keywords
flap
flaps
rod
installation according
passenger compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02747534A
Other languages
German (de)
French (fr)
Other versions
EP1438205B1 (en
Inventor
Patrick Beck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Climatisation SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Climatisation SA filed Critical Valeo Climatisation SA
Publication of EP1438205A1 publication Critical patent/EP1438205A1/en
Application granted granted Critical
Publication of EP1438205B1 publication Critical patent/EP1438205B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00835—Damper doors, e.g. position control
    • B60H1/00842—Damper doors, e.g. position control the system comprising a plurality of damper doors; Air distribution between several outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00835—Damper doors, e.g. position control
    • B60H1/00857—Damper doors, e.g. position control characterised by the means connecting the initiating means, e.g. control lever, to the damper door

Definitions

  • the invention relates to a heating and / or air conditioning installation provided with movable shutters for the passenger compartment of a motor vehicle, and to a vehicle equipped with such an installation.
  • these installations include at least one hinged flap which directs the air towards the top of the dashboard for the demisting function and an articulated flap which directs the air towards the bottom of the passenger compartment, typically the feet.
  • These two components work in collaboration so that it is possible to have air only in the demisting function, or air only in the low function, or even air distributed between these two functions.
  • the two components are generally linked together so that they can be moved together to move from one function to another.
  • This connection is typically composed of connecting rods and levers or gears / pinions or cables connected to an actuator arranged on the dashboard and easily accessible by the occupant of the vehicle. It is therefore a relatively complex and costly link to implement.
  • the travel that the flaps can achieve with this type of connection is generally reduced, taking into account in particular the high rigidity of the connection and the number of parts used.
  • mounting inside the heating and / or air conditioning installation is often complex having regard to the number of parts required and their kinematics.
  • the object of the invention is to solve the drawbacks mentioned above.
  • the invention proposes that the connection between the two components is simplified and made flexible to define an optimized travel.
  • the subject of the invention is a heating and / or air conditioning installation for the passenger compartment of a motor vehicle comprising at least one pipe containing two articulated flaps for distributing the hot and / or cold air in the direction of defined zones of said passenger compartment, the flaps being connected to each other in order to be able to pivot jointly respectively around axes which are parallel to each other, in which the flaps are connected vis-à-vis by means of at least one rod, the connection between each end of the rod and each flap having at least one degree of freedom in rotation about an axis substantially parallel to the axis of rotation of at least one of the flaps.
  • At least one of the flaps has, on a surface, an overmolded housing of at least substantially hemispherical shape adapted to receive an at least substantially hemispherical protuberance which is provided with one end of the connecting rod to form a ball joint connection.
  • at least one of the flaps has, on a surface, a protruding overmolded protrusion of at least hemispherical shape adapted to cooperate with a hollow housing at least hemispherical which is provided with one end of the connecting rod for form a ball joint type connection.
  • At least one of the ends of the connecting rod has a mechanically weakened zone, and the flap, as well as the weakened zone of the rod, are covered by an overmolded protuberance made of a more flexible material than that of the flap and the rod.
  • the rod is formed in one piece with at least one of the flaps and has, close to the flap, a weakened area mechanically covered by an overmolded protuberance made of a more flexible material than that of the flap and stem.
  • each housing / protrusion of the shutter is overmolded at the same time as a peripheral sealing lip of said shutter. This makes it possible to carry out the bonding and sealing functions during a single molding operation, thereby reducing the time taken to manufacture the part and to achieve savings in mold and material.
  • the connecting rod is straight and rigid.
  • the flaps are parallel to each other and connected by several connecting rods.
  • the first component is an air orientation component towards a vehicle windshield and the second component is an air orientation component towards a lower part of the passenger compartment, for example a passenger leg occupancy area.
  • the invention also relates to a vehicle provided with a passenger compartment equipped with a heating and / or air conditioning installation as described above.
  • FIG. 1 a sectional view of part of a heating and / or air conditioning installation for the passenger compartment of a motor vehicle comprising two articulated flaps connected by a connecting rod;
  • Figure 2 a detail view of Figure 1 showing the connection between a flap and the rod;
  • a ventilation duct 8 of a heating and / or air conditioning installation 10 of a vehicle passenger compartment according to the invention is shown diagrammatically in FIG. 1.
  • Line 8 contains two flaps 11 and 12 articulated respectively around axes X1 and X2. These shutters have the function of orienting a flow of hot or cold air F coming from a blower (not shown) in the direction of an upper zone 14 of the pipe 8, for example for the defogging function of a barrier. vehicle breeze, and a low area 15 of driving, for example the area where the feet of the occupants placed at the front of the vehicle rest.
  • the flaps 11 and 12 operate jointly under the effect of the actuation of an operating member (not shown) such as a button disposed on the dashboard of the vehicle, that is to say that they pivot together to block or open the passage of air towards the various aforementioned areas.
  • rectilinear connecting rod 16 made for example of plastic material or metal.
  • This connecting rod 16 has, respectively at each of its ends 17 and 18, protrusions 19 and 20 having a shaped surface extending over at least one half-sphere, for example two-thirds of a sphere in the example shown.
  • This portion of sphere can be machined in the mass, obtained by molding or be made up of an attached part firmly fixed to the end of the rod 16. It can be covered with a material with low coefficient of friction such as Teflon (trademark)
  • the protrusions 19 and 20 of the rod 16 cooperate with housings 21 and 22 which are overmolded in projection on a surface of each of the flaps 11 and 12 so as to form a ball-type connection, that is to say with three degrees of freedom in rotation.
  • the housings 21 and 22 each have a hollow interior shape of shape substantially greater than a hemisphere having substantially the same diameter as that of the sphere portions of the protrusions 19 and 20 of the rod 16.
  • Each housing is overmolded in a more flexible material than that used for the rod and the flaps, an elastomeric plastic material in the embodiment.
  • the housing is also overmolded at the same time as a sealing lip 25 traversing the periphery of the flap, as shown in detail in FIG. 2.
  • the assembly of the shutters is very simple to carry out.
  • Each protrusion 19 or 20 of the rod 16 is mounted slightly by force in the respective housing 21 or 22 of each flap 11 and 12 so as to form the above-mentioned ball joint connection and a unitary sub-assembly.
  • the flaps 11 and 12 are arranged parallel to one another and can pivot jointly in one direction or the other by means of the rod in order to direct the flow. air in the right place, as shown in dotted lines in Figure 1.
  • the ball joint allows the flaps to have good angular deflections and the material used for the housing makes it possible to make up for the play that may exist between these flaps.
  • This ball joint connection is thus both rigid, in the sense that the flaps work well in harmony while remaining parallel to each other, and flexible thanks to the elastomer used to make the housings.
  • the flaps 11 and 12 can thus pass from a first extreme position illustrated by FIG. 1, in which the expelled air is exclusively sent to the lower zone 15 of the pipe 8, to a second position, the extreme position illustrated by FIG. 3, in which the expelled air is exclusively sent to the upper zone 14 of the pipe 8, passing through all the intermediate positions (arrows F1 and F2).
  • These positions allow, in this case, to defrost the windshield while warming the legs and feet of the occupants of the front of the vehicle.
  • the large amplitude of the deflections is materialized by the position of the stops B1 to B4.
  • FIGS. 5 to 7 another embodiment of the connection between the two flaps 11 and 12 is shown.
  • one of the ends 18 of the rod 16 has, instead of a spherical protuberance or a housing at one of its ends, a zone 26 mechanically weakened.
  • This area is, in the embodiment, in the form of grooves or peripheral grooves made over a small part of its length, typically from a few millimeters to a few centimeters.
  • An overmoulding 27 of elastomer is produced on the flap 12 and includes a part of the connecting rod 6, around the mechanically weakened zone 26.
  • the part of the mechanically weakened rod collaborates with the elastomer of the overmolding 27 for forming a flexible connection having a degree of freedom in rotation at least along an axis substantially parallel to that of the shutter to accompany the movement of the shutter in use.
  • the elastomer generates a low restoring force between the rod and the flap, without however hampering the movements of the flaps relative to each other.
  • the other end 17 of the connecting rod 16 can be produced in the same way with the overheating of the second flap, or alternatively have a ball joint, such as for example the protuberance 19. '
  • Figures 8 to 10 illustrate an alternative embodiment of Figures 5 to 7.
  • the connecting rod 16 is molded in one piece with one of the flaps 11 or 12 and has at one end 18 a bead of 28 , bond which has a low mechanical resistance to bending.
  • a bead 28 having dimensions, thickness, length, allowing the connecting rod 16 to have a certain brittleness and flexibility in bending.
  • an elastomeric overmolding 29 is disposed around the cord 28 and the end 18 of the rod 16, a connection with at least one degree of freedom in rotation along an axis substantially parallel to the axis of rotation of the flap is created between the rod 16 and the flap 12.
  • the rod 16 can control the two flaps 11 and 12 while having the possibility of accompanying this movement by pivoting slightly thanks to the elasticity of the elastomer of the overmolding and the reduced resistance of the connecting bead 28 between the rod 16 and the flap 12.
  • the other end 17 of the connecting rod may have a ball joint 19 such as that illustrated in FIGS. 1 to 4, or else a connection identical to that of FIGS. 5 to 7.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Passenger Equipment (AREA)

Abstract

The invention relates to a heating and/or air-conditioning unit (10) for the passenger compartment of a motor vehicle, comprising at least one duct (8), housing two articulated flaps (11, 12) for distributing the hot and/or cold air in the direction of defined zones of said passenger compartment. The flaps (11, 12) are connected to each other in order to pivot in conjunction about parallel axes. Within said unit the flaps (11, 12) are connected face to face by means of a connecting rod (16) and the connection at each end of the rod with each flap has at least one degree of freedom in rotation about an axis essentially parallel to the axis of rotation of at least one of said flaps.

Description

INSTALLATION DE CHAUFFAGE ET/OU DE CLIMATISATION MUNIE DE HEATING AND / OR AIR CONDITIONING SYSTEM PROVIDED WITH
VOLETS MOBILES POUR HABITACLE DE VEHICULE AUTOMOBILE,MOBILE SHUTTERS FOR A MOTOR VEHICLE INTERIOR,
ET VEHICULE EQUIPE D'UNE TELLE INSTALLATIONAND VEHICLE EQUIPPED WITH SUCH AN INSTALLATION
L'invention concerne une installation de chauffage et/ou de climatisation munie de volets mobiles pour habitacle de véhicule automobile, et un véhicule équipé d'une telle installation.The invention relates to a heating and / or air conditioning installation provided with movable shutters for the passenger compartment of a motor vehicle, and to a vehicle equipped with such an installation.
Il est connu dans l'art antérieur d'équiper les véhicules automobiles d'une installation de chauffage et/ou de climatisation munie notamment d'un organe de propulsion d'air tel qu'un pulseur, d'un moyen de chauffage ou de refroidissement tel qu'un radiateur ou un condenseur, et de conduites d'aération équipées de moyens d'obturation et d'orientation de l'air expulsé, cet air pouvant être tout aussi bien chaud que froid.It is known in the prior art to equip motor vehicles with a heating and / or air conditioning installation provided in particular with an air propulsion member such as a blower, with heating or cooling such as a radiator or a condenser, and ventilation pipes equipped with means for closing and orienting the expelled air, this air being able to be just as hot as cold.
Typiquement, ces installations comprennent au moins un volet articulé qui dirige l'air vers le haut de la planche de bord pour la fonction désembuage et un volet articulé qui dirige l'air vers le bas de l'habitacle, typiquement les pieds. Ces deux volets fonctionnent en collaboration de telle sorte qu'il est possible d'avoir de l'air uniquement en fonction désembuage, ou bien de l'air uniquement en fonction basse, ou bien encore de l'air réparti entre ces deux fonctions. Les deux volets sont en général liés entre eux de façon à pouvoir être déplacés conjointement pour passer d'une fonction à une autre.Typically, these installations include at least one hinged flap which directs the air towards the top of the dashboard for the demisting function and an articulated flap which directs the air towards the bottom of the passenger compartment, typically the feet. These two components work in collaboration so that it is possible to have air only in the demisting function, or air only in the low function, or even air distributed between these two functions. The two components are generally linked together so that they can be moved together to move from one function to another.
Cette liaison est typiquement composée de bielles et de leviers ou bien d'engrenages/pignons ou encore de câbles reliés à un actionneur disposé sur la planche de bord et facilement accessible par l'occupant du véhicule. Il s'agit donc d'une liaison relativement complexe et coûteuse à mettre en œuvre. Les débattements que peuvent atteindre les volets avec ce type de liaison sont de façon générale réduits, compte tenu notamment de la rigidité importante de la liaison et du nombre de pièces utilisées. Par ailleurs, le montage à l'intérieur de l'installation de chauffage et/ou de climatisation est souvent complexe eu égard au nombre de pièces requises et à leur cinématique. Le but de l'invention est de résoudre les inconvénients évoqués ci-dessus.This connection is typically composed of connecting rods and levers or gears / pinions or cables connected to an actuator arranged on the dashboard and easily accessible by the occupant of the vehicle. It is therefore a relatively complex and costly link to implement. The travel that the flaps can achieve with this type of connection is generally reduced, taking into account in particular the high rigidity of the connection and the number of parts used. Furthermore, mounting inside the heating and / or air conditioning installation is often complex having regard to the number of parts required and their kinematics. The object of the invention is to solve the drawbacks mentioned above.
Pour ce faire, l'invention propose que la liaison entre les deux volets soit simplifiée et rendue flexible pour définir un débattement optimisé. Plus précisément, l'invention a pour objet une installation de chauffage et/ou de climatisation pour habitacle de véhicule automobile comprenant au moins une conduite renfermant deux volets articulés pour répartir l'air chaud et/ou froid en direction de zones définies dudit habitacle, les volets étant connectés l'un à l'autre pour pouvoir pivoter conjointement respectivement autour d'axes parallèles entre eux, dans laquelle les volets sont reliés en vis-à-vis par l'intermédiaire d'au moins une tige, la liaison entre chaque extrémité de la tige et chaque volet possédant au moins un degré de liberté en rotation selon un axe sensiblement parallèle à l'axe de rotation de l'un au moins des volets. Selon un premier mode de réalisation, l'un au moins des volets présente, sur une surface, un logement surmoulé de forme au moins sensiblement hémisphérique adapté pour recevoir une protubérance au moins sensiblement hémisphérique dont est munie une extrémité de la tige de liaison pour former une liaison de type rotule. Selon une variante de réalisation, l'un au moins des volets présente, sur une surface, une protubérance surmoulée en saillie de forme au moins hémisphérique adaptée pour coopérer avec un logement creux au moins hémisphérique dont est munie une extrémité de la tige de liaison pour former une liaison de type rotule. Ces solutions permettent ainsi de réduire considérablement le nombre de pièces utilisées pour réaliser la cinématique des volets. Par ailleurs, lors du montage des volets dans l'installation de chauffage et/ou de climatisation, il est ainsi possible de lier préalablement les volets avec la tige, ce qui évite de perdre des pièces. Selon un autre mode de réalisation, l'une au moins des extrémités de la tige de liaison présente une zone affaiblie mécaniquement, et le volet, ainsi que la zone affaiblie de la tige, sont recouverts par une protubérance surmoulée réalisée dans un matériau plus souple que celui du volet et de la tige.To do this, the invention proposes that the connection between the two components is simplified and made flexible to define an optimized travel. More specifically, the subject of the invention is a heating and / or air conditioning installation for the passenger compartment of a motor vehicle comprising at least one pipe containing two articulated flaps for distributing the hot and / or cold air in the direction of defined zones of said passenger compartment, the flaps being connected to each other in order to be able to pivot jointly respectively around axes which are parallel to each other, in which the flaps are connected vis-à-vis by means of at least one rod, the connection between each end of the rod and each flap having at least one degree of freedom in rotation about an axis substantially parallel to the axis of rotation of at least one of the flaps. According to a first embodiment, at least one of the flaps has, on a surface, an overmolded housing of at least substantially hemispherical shape adapted to receive an at least substantially hemispherical protuberance which is provided with one end of the connecting rod to form a ball joint connection. According to an alternative embodiment, at least one of the flaps has, on a surface, a protruding overmolded protrusion of at least hemispherical shape adapted to cooperate with a hollow housing at least hemispherical which is provided with one end of the connecting rod for form a ball joint type connection. These solutions thus make it possible to considerably reduce the number of parts used to produce the kinematics of the shutters. Furthermore, during the mounting of the flaps in the heating and / or air conditioning installation, it is thus possible to link the flaps with the rod beforehand, which avoids losing parts. According to another embodiment, at least one of the ends of the connecting rod has a mechanically weakened zone, and the flap, as well as the weakened zone of the rod, are covered by an overmolded protuberance made of a more flexible material than that of the flap and the rod.
Selon une variante de réalisation, la tige est formée d'une seule pièce avec l'un au moins des volets et présente, proche, du volet, une zone affaiblie mécaniquement recouverte par une protubérance surmoulée réalisée dans un matériau plus souple que celui du volet et de la tige.According to an alternative embodiment, the rod is formed in one piece with at least one of the flaps and has, close to the flap, a weakened area mechanically covered by an overmolded protuberance made of a more flexible material than that of the flap and stem.
Afin de permettre un montage facile de la tige et de larges débattements des volets, il est prévu que le surmoulage de chaque logement/protubérance du volet ou de la tige soit réalisé(e) dans un matériau plastique élastomère. Cette solution permet également de compenser les jeux entre les volets.In order to allow easy mounting of the rod and wide deflections of the flaps, it is intended that the overmolding of each housing / protuberance of the flap or of the rod is carried out in an elastomeric plastic material. This solution also makes it possible to compensate for the play between the flaps.
Avantageusement, chaque logement/protubérance du volet est surmoulé(e) en même temps qu'une lèvre périphérique d'étanchéité dudit volet. Ceci permet de réaliser les fonctions de liaison et d'étanchéité lors d'une seule opération de moulage, réduisant ainsi les délais de fabrication de la pièce et de réaliser des économies de moule et de matière.Advantageously, each housing / protrusion of the shutter is overmolded at the same time as a peripheral sealing lip of said shutter. This makes it possible to carry out the bonding and sealing functions during a single molding operation, thereby reducing the time taken to manufacture the part and to achieve savings in mold and material.
Afin de garantir une liaison de bonne qualité, stable, compacte et résistante, la tige de liaison est rectiligne et rigide. Avantageusement, les volets sont parallèles entre eux et reliés par plusieurs tiges de liaison.In order to guarantee a good quality, stable, compact and resistant connection, the connecting rod is straight and rigid. Advantageously, the flaps are parallel to each other and connected by several connecting rods.
A titre d'exemple, le premier volet est un volet d'orientation de l'air en direction d'un pare-brise de véhicule et le second volet est un volet d'orientation de l'air en direction d'une partie basse de l'habitacle, par exemple une zone d'occupation des jambes d'un passager.For example, the first component is an air orientation component towards a vehicle windshield and the second component is an air orientation component towards a lower part of the passenger compartment, for example a passenger leg occupancy area.
L'invention a également pour objet un véhicule muni d'un habitacle équipé d'une installation de chauffage et/ou de climatisation telle que décrite précédemment.The invention also relates to a vehicle provided with a passenger compartment equipped with a heating and / or air conditioning installation as described above.
D'autres caractéristiques, détails et avantages de l'invention ressortiront à la lecture de la description qui suit relative à d'exemples de réalisation non limitatifs, en référence aux dessins annexés qui représentent respectivement :Other characteristics, details and advantages of the invention will emerge on reading the following description relating to examples of non-limiting embodiment, with reference to the appended drawings which respectively represent:
- la figure 1 , une vue en coupe d'une partie d'une installation de chauffage et/ou de climatisation pour habitacle de véhicule automobile comprenant deux volets articulés connectés par une tige de liaison ;- Figure 1, a sectional view of part of a heating and / or air conditioning installation for the passenger compartment of a motor vehicle comprising two articulated flaps connected by a connecting rod;
- la figure 2, une vue de détail de la figure 1 représentant la liaison entre un volet et la tige ;- Figure 2, a detail view of Figure 1 showing the connection between a flap and the rod;
- la figure 3, une vue similaire à la figure 1 dans laquelle les volets occupent une autre position ; - la figure 4, une variante de réalisation de la figure 2 ;- Figure 3, a view similar to Figure 1 in which the flaps occupy another position; - Figure 4, an alternative embodiment of Figure 2;
- la figure 5, une vue en coupe d'un volet munie d'un surmoulage et d'une tige de liaison ;- Figure 5, a sectional view of a shutter provided with an overmolding and a connecting rod;
- la figure 6, une vue du dessus de la figure 5 ;- Figure 6, a top view of Figure 5;
- la figure 7, une vue de côté de la figure 6 ; - la figure 8, une vue en coupe d'une variante e réalisatipn de la figure 5 ;- Figure 7, a side view of Figure 6; - Figure 8, a sectional view of a variant e embodiment of Figure 5;
- la figure 9, une vue en perspective d'un volet et d'une tige de liaison moulés d'une pièce ; et- Figure 9, a perspective view of a flap and a connecting rod molded in one piece; and
- la figure 10, la tige et le volet de la figure 9 recouverts partiellement et localement par un surmoulage.- Figure 10, the rod and the flap of Figure 9 partially and locally covered by overmolding.
Une conduite d'aération 8 d'une installation 10 de chauffage et/ou de climatisation d'un habitacle de véhicule conforme à l'invention est schématisée sur la figure 1.A ventilation duct 8 of a heating and / or air conditioning installation 10 of a vehicle passenger compartment according to the invention is shown diagrammatically in FIG. 1.
La conduite 8 renferme deux volets 11 et 12 articulés respectivement autours d'axes X1 et X2. Ces volets ont pour fonction d'orienter un flux d'air chaud ou froid F provenant d'un pulseur (non représenté) en direction d'une zone haute 14 de la conduite 8, par exemple pour la fonction désembuage d'un pare-brise de véhicule, et d'une zone basse 15 de la conduite, par exemple la zone où reposent les pieds des occupants placés à l'avant du véhicule. Les volets 11 et 12 fonctionnent conjointement sous l'effet de l'actionnement d'un organe de manœuvre (non représenté) tel qu'un bouton disposé sur la planche de bord du véhicule, c'est-à-dire qu'ils pivotent ensemble pour bloquer ou ouvrir le passage de l'air en direction des différentes zones précitées.Line 8 contains two flaps 11 and 12 articulated respectively around axes X1 and X2. These shutters have the function of orienting a flow of hot or cold air F coming from a blower (not shown) in the direction of an upper zone 14 of the pipe 8, for example for the defogging function of a barrier. vehicle breeze, and a low area 15 of driving, for example the area where the feet of the occupants placed at the front of the vehicle rest. The flaps 11 and 12 operate jointly under the effect of the actuation of an operating member (not shown) such as a button disposed on the dashboard of the vehicle, that is to say that they pivot together to block or open the passage of air towards the various aforementioned areas.
Pour cela, ils sont sensiblement parallèles entre eux et sont connectés l'un à l'autre par l'intermédiaire d'une tige rigide rectiligne 16 de liaison réalisée par exemple en matériau plastique ou en métal.For this, they are substantially parallel to each other and are connected to each other by means of a rigid rectilinear connecting rod 16 made for example of plastic material or metal.
Cette tige de liaison 16 présente, respectivement à chacune de ses extrémités 17 et 18, des protubérances 19 et 20 ayant une surface de forme s'étendant sur au moins une demi-sphère, par exemple les deux tiers d'une sphère dans l'exemple représenté. Cette portion de sphère peut être usinée dans la masse, obtenue de moulage ou être constituée d'une pièce rapportée solidement fixée à l'extrémité de la tige 16. Elle peut être recouverte d'un matériau à faible coefficient de frottement tel que du Téflon (marque déposée)This connecting rod 16 has, respectively at each of its ends 17 and 18, protrusions 19 and 20 having a shaped surface extending over at least one half-sphere, for example two-thirds of a sphere in the example shown. This portion of sphere can be machined in the mass, obtained by molding or be made up of an attached part firmly fixed to the end of the rod 16. It can be covered with a material with low coefficient of friction such as Teflon (trademark)
Comme cela est également représenté à une échelle agrandie sur la vue de détail de la figure 2, les protubérances 19 et 20 de la tige 16 coopèrent avec des logements 21 et 22 qui sont surmoulés en saille sur une surface de chacun des volets 11 et 12 de manière à former une liaison de type rotule, c'est-à-dire à trois degrés de liberté en rotation. A cet effet, les logements 21 et 22 présentent chacun une forme intérieure creuse de forme sensiblement supérieure à une demi-sphère ayant sensiblement le même diamètre que celui des portions de sphère des protubérances 19 et 20 de la tige 16.As is also shown on an enlarged scale in the detail view of FIG. 2, the protrusions 19 and 20 of the rod 16 cooperate with housings 21 and 22 which are overmolded in projection on a surface of each of the flaps 11 and 12 so as to form a ball-type connection, that is to say with three degrees of freedom in rotation. For this purpose, the housings 21 and 22 each have a hollow interior shape of shape substantially greater than a hemisphere having substantially the same diameter as that of the sphere portions of the protrusions 19 and 20 of the rod 16.
Chaque logement est surmoulé dans une matière plus souple que celle utilisée pour la tige et les volets, un matériau plastique élastomère dans l'exemple de réalisation. Pour réduire les opérations de fabrication et le nombre de moule, le logement est également surmoulé en même temps qu'une lèvre d'étanchéité 25 parcourant la périphérie du volet, comme cela est représenté en détail sur la figure 2. Le montage des volets est très simple à réaliser. Chaque protubérance 19 ou 20 de la tige 16 est montée légèrement à force dans le logement respectif 21 ou 22 de chaque volet 11 et 12 de manière à former la liaison rotule précitée et un sous-ensemble unitaire. Une fois ce sous-ensemble monté dans l'installation de chauffage et/ou de climatisation, les volets 11 et 12 sont disposés parallèlement entre eux et peuvent pivoter conjointement dans un sens ou dans l'autre grâce à la tige afin de diriger le flux d'air au bon endroit, comme cela est représenté en traits pointillés sur la figure 1. La liaison rotule permet aux volets d'avoir de bons débattements angulaires et le matériau utilisé pour les logements permet de rattraper le jeu pouvant exister entre ces volets.Each housing is overmolded in a more flexible material than that used for the rod and the flaps, an elastomeric plastic material in the embodiment. To reduce the manufacturing operations and the number of molds, the housing is also overmolded at the same time as a sealing lip 25 traversing the periphery of the flap, as shown in detail in FIG. 2. The assembly of the shutters is very simple to carry out. Each protrusion 19 or 20 of the rod 16 is mounted slightly by force in the respective housing 21 or 22 of each flap 11 and 12 so as to form the above-mentioned ball joint connection and a unitary sub-assembly. Once this sub-assembly is installed in the heating and / or air conditioning installation, the flaps 11 and 12 are arranged parallel to one another and can pivot jointly in one direction or the other by means of the rod in order to direct the flow. air in the right place, as shown in dotted lines in Figure 1. The ball joint allows the flaps to have good angular deflections and the material used for the housing makes it possible to make up for the play that may exist between these flaps.
Cette liaison rotule est ainsi à la fois rigide, dans le sens où les volets fonctionnent bien en harmonie en restant parallèles entre eux, et souple grâce à l'élastomère utilisé pour réaliser les logements. En fonctionnement, les volets 11 et 12 peuvent ainsi passer d'une première position extrême illustrée par la figure 1 , dans laquelle l'air expulsé est exclusivement envoyé vers la zone basse 15 de la conduite 8, à une seconde position, la position extrême illustrée par la figure 3, dans laquelle l'air expulsé est exclusivement envoyé vers la zone haute 14 de la conduite 8, en passant par toutes les positions intermédiaires (flèches F1 et F2). Ces positions permettent, dans le cas présent, de dégivrer le pare-brise tout en réchauffant les jambes et les pieds des occupants de l'avant du véhicule. L'amplitude importante des débattements est matérialisée par la position des butées B1 à B4. Comme cela est représenté sur la figure 4, il est également possible de munir au moins l'extrémité 17 de la tige 16 d'un logement 23 sensiblement hémisphérique coopérant avec une protubérance 24 sensiblement hémisphérique surmoulée sur le volet 12. Cette structure inversée permet d'obtenir de la même façon une liaison rotule qui possède les mêmes caractéristiques que celle illustrée par les figures précédentes. Bien entendu, la tige 16 peut être' munie à ses deux extrémités 17 et 18 d'un logement 23 et les deux volets qu'elle relie sont alors chacun muni' d'une protubérance 24 pour compléter la liaison rotule.This ball joint connection is thus both rigid, in the sense that the flaps work well in harmony while remaining parallel to each other, and flexible thanks to the elastomer used to make the housings. In operation, the flaps 11 and 12 can thus pass from a first extreme position illustrated by FIG. 1, in which the expelled air is exclusively sent to the lower zone 15 of the pipe 8, to a second position, the extreme position illustrated by FIG. 3, in which the expelled air is exclusively sent to the upper zone 14 of the pipe 8, passing through all the intermediate positions (arrows F1 and F2). These positions allow, in this case, to defrost the windshield while warming the legs and feet of the occupants of the front of the vehicle. The large amplitude of the deflections is materialized by the position of the stops B1 to B4. As shown in Figure 4, it is also possible to provide at least the end 17 of the rod 16 with a housing 23 substantially hemispherical cooperating with a protrusion 24 substantially hemispherical overmolded on the flap 12. This inverted structure allows 'Obtain in the same way a ball joint which has the same characteristics as that illustrated by the previous figures. Of course, the rod 16 can be 'provided at both ends 17 and 18 of a housing 23 and the two flaps which it connects are then each provided with a protuberance 24 to complete the ball joint connection.
Sur les figures 5 à 7, un autre mode de réalisation de la liaison entre les deux volets 11 et 12 est représentée. Dans cette variante, l'une des extrémités 18 de la tige 16 présente, à la place d'une protubérance sphérique ou d'un logement à l'une de ses extrémités, une zone 26 affaiblie mécaniquement. Cette zone se présente, dans l'exemple de réalisation, sous la forme de stries ou de gorges périphériques réalisées sur une petite partie de sa longueur, typiquement de quelques millimètres à quelques centimètres. Un surmoulage 27 en élastomère est réalisé sur le volet 12 et englobe une partie de la tige de liaison 6, autour de la zone affaiblie mécaniquement 26. De cette façon, la partie de la tige affaiblie mécaniquement collabore avec l'élastomère du surmoulage 27 pour former une liaison souple présentant un degré de liberté en rotation au moins selon un axe sensiblement parallèle à celui du volet pour accompagner le mouvement du volet en utilisation. L'élastomère engendre une faible force de rappel entre la tige et ie volet, sans toutefois nuire aux mouvements des volets les uns par rapport aux autres. L'autre extrémité 17 de la tige de liaison 16 peut être réalisée de la même façon avec le surmouîage du second volet, ou bien présenter une liaison rotule, telle que par exemple la protubérance 19. ' In FIGS. 5 to 7, another embodiment of the connection between the two flaps 11 and 12 is shown. In this variant, one of the ends 18 of the rod 16 has, instead of a spherical protuberance or a housing at one of its ends, a zone 26 mechanically weakened. This area is, in the embodiment, in the form of grooves or peripheral grooves made over a small part of its length, typically from a few millimeters to a few centimeters. An overmoulding 27 of elastomer is produced on the flap 12 and includes a part of the connecting rod 6, around the mechanically weakened zone 26. In this way, the part of the mechanically weakened rod collaborates with the elastomer of the overmolding 27 for forming a flexible connection having a degree of freedom in rotation at least along an axis substantially parallel to that of the shutter to accompany the movement of the shutter in use. The elastomer generates a low restoring force between the rod and the flap, without however hampering the movements of the flaps relative to each other. The other end 17 of the connecting rod 16 can be produced in the same way with the overheating of the second flap, or alternatively have a ball joint, such as for example the protuberance 19. '
Les figures 8 à 10 illustrent une variante de réalisation des figures 5 à 7. Dans cette variante, la tige de liaison 16 est moulée d'une pièce avec l'un des volets 11 ou 12 et présente à une extrémité 18 un cordon de 28, liaison qui possède une faible résistance mécanique à la flexion. Pour cela, il est prévu un cordon 28 ayant des dimensions , -épaisseur, longueur- , permettant à la tige de liaison 16 de présenter une certaine fragilité et une souplesse à la flexion.Figures 8 to 10 illustrate an alternative embodiment of Figures 5 to 7. In this variant, the connecting rod 16 is molded in one piece with one of the flaps 11 or 12 and has at one end 18 a bead of 28 , bond which has a low mechanical resistance to bending. For this, there is provided a bead 28 having dimensions, thickness, length, allowing the connecting rod 16 to have a certain brittleness and flexibility in bending.
Ainsi, une fois un surmoulage 29 en élastomère disposé autour du cordon 28 et de l'extrémité 18 de la tige 16, une liaison avec au moins un degré de liberté en rotation selon un axe sensiblement parallèle à l'axe de rotation du volet est créée entre la tige 16 et le volet 12. En fonctionnement, la tige 16 peut piloter les deux volets 11 et 12 tout en ayant la possibilité d'accompagner ce mouvement en pivotant légèrement grâce à l'élasticité de l'élastomère du surmoulage et de la résistance réduite du cordon de liaison 28 entre la tige 16 et le volet 12. L'autre extrémité 17 de la tige de liaison peut présenter une liaison rotule 19 telle que celle illustrée sur jes figures 1 à 4, ou bien une liaison identique à celle des figures 5 à 7.Thus, once an elastomeric overmolding 29 is disposed around the cord 28 and the end 18 of the rod 16, a connection with at least one degree of freedom in rotation along an axis substantially parallel to the axis of rotation of the flap is created between the rod 16 and the flap 12. In operation, the rod 16 can control the two flaps 11 and 12 while having the possibility of accompanying this movement by pivoting slightly thanks to the elasticity of the elastomer of the overmolding and the reduced resistance of the connecting bead 28 between the rod 16 and the flap 12. The other end 17 of the connecting rod may have a ball joint 19 such as that illustrated in FIGS. 1 to 4, or else a connection identical to that of FIGS. 5 to 7.
Il doit être bien entendu toutefois que ces exemples sont donnés uniquement à titre d'illustration de l'objet de l'Invention dont ils ne constituent en aucune manière une limitation. Ainsi, il est possible de monter en parallèle plus de deux volets, par exemple un volet supérieur pour la fonction désembuage, un volet médian pour l'aération de l'habitacle, et un volet inférieur pour les pieds des occupants.It should be understood, however, that these examples are given solely by way of illustration of the subject of the invention of which they do not in any way constitute a limitation. Thus, it is possible to mount in parallel more than two shutters, for example an upper shutter for the demisting function, a middle shutter for the ventilation of the passenger compartment, and a lower shutter for the feet of the occupants.
Il est également possible de disposer deux, voire trois tiges entre deux volets de manière à rigidifier l'ensemble et garantir une articulation plus homogène avec une meilleure répartition des forces. It is also possible to have two or even three rods between two flaps so as to stiffen the assembly and guarantee a more homogeneous articulation with a better distribution of forces.

Claims

REVENDICATIONS
1. Installation (10) de chauffage et/ou de climatisation pour habitacle de véhicule automobile comprenant au moins une conduite (8) renfermant deux volets articulés (11 , 12) pour répartir l'air chaud et/ou froid en direction de zones définies dudit habitacle, les volets (11 , 12) étant connectés l'un à l'autre pour pouvoir pivoter conjointement respectivement autour d'axes parallèles entre eux, caractérisée en ce que les volets (11 , 12) sont reliés en vis-à-vis par l'intermédiaire d'au moins une tige de connexion (16), la liaison entre chaque extrémité de la tige et chaque volet possédant au moins un degré de liberté en rotation selon un axe sensiblement parallèle à l'axe de rotation de l'un au moins des volets.1. Installation (10) for heating and / or air conditioning for a passenger compartment of a motor vehicle comprising at least one pipe (8) containing two articulated flaps (11, 12) for distributing the hot and / or cold air in the direction of defined zones of said passenger compartment, the flaps (11, 12) being connected to one another so as to be able to pivot jointly respectively around parallel axes with each other, characterized in that the flaps (11, 12) are connected vis-à-vis screw via at least one connecting rod (16), the connection between each end of the rod and each flap having at least one degree of freedom in rotation along an axis substantially parallel to the axis of rotation of the 'at least one of the shutters.
2. Installation selon la revendication 1 , dans laquelle l'un au moins des volets (11 ; 12) présente, sur une surface, un logement (21 ; 22) surmoulé de forme au moins sensiblement hémisphérique adapté pour recevoir une protubérance (19 ; 20) au moins sensiblement hémisphérique dont est munie une extrémité (17 ; 18) de la tige de liaison (16) pour former une liaison de type rotule.2. Installation according to claim 1, wherein at least one of the flaps (11; 12) has, on a surface, a housing (21; 22) molded at least substantially hemispherical shape adapted to receive a protuberance (19; 20) at least substantially hemispherical which is provided with one end (17; 18) of the connecting rod (16) to form a ball-type connection.
3. Installation selon la revendication 1 ou 2, dans laquelle l'un au moins des volets (11 ; 12) présente, sur une surface, une protubérance (24) surmoulée en saillie de forme au moins hémisphérique adaptée pour coopérer avec un logement creux (23) au moins hémisphérique dont est munie une extrémité (17 ; 18) de la tige de liaison (16) pour former une liaison de type rotule.3. Installation according to claim 1 or 2, wherein at least one of the flaps (11; 12) has, on a surface, a protrusion (24) overmolded projecting at least hemispherical shape adapted to cooperate with a hollow housing (23) at least hemispherical which is provided with one end (17; 18) of the connecting rod (16) to form a ball-type connection.
4. Installation selon l'une quelconque des revendications 1 à 3, dans laquelle l'une au moins des extrémités (17 ; 18) de la tige (16) de liaison présente une zone (26) affaiblie mécaniquement, et le volet (11 ; 12) ainsi que la zone (26) affaiblie de la tige (16), sont recouverts par une protubérance surmoulée (27) réalisée dans un matériau plus souple que celui du volet (11 ; 12) et de la tige (16). 4. Installation according to any one of claims 1 to 3, wherein at least one of the ends (17; 18) of the rod (16) connecting has a zone (26) mechanically weakened, and the flap (11 ; 12) as well as the weakened zone (26) of the rod (16), are covered by an overmolded protuberance (27) made of a more flexible material than that of the flap (11; 12) and the rod (16).
5. Installation selon l'une quelconque des revendications 1 à5. Installation according to any one of claims 1 to
4, dans laquelle la tige de liaison (16) est formée d'une seule pièce avec l'un au moins des volets (11 ; 12) et présente, proche du volet, une zone affaiblie mécaniquement (28) recouverte par une protubérance surmoulée (29) réalisée dans un matériau plus souple que celui du volet (11 ; 12) et de la tige (16).4, in which the connecting rod (16) is formed in one piece with one at least flaps (11; 12) and has, close to the flap, a mechanically weakened zone (28) covered by an overmolded protuberance (29) made of a more flexible material than that of the flap (11; 12) and of the rod (16).
6. Installation selon l'une quelconque des revendications 1 à 5, dans laquelle le surmoulage de chaque logement/protubérance (21 ;6. Installation according to any one of claims 1 to 5, wherein the overmolding of each housing / protuberance (21;
22 ; 24 ; 27 ; 28) du volet (11 ; 12) ou de la tige (16) est réalisé(e) dans un matériau plastique élastomère.22; 24; 27; 28) of the flap (11; 12) or of the rod (16) is made (e) of an elastomeric plastic material.
7. Installation selon l'une quelconque des revendications 2 à 6, dans laquelle chaque logement/protubérance (21 ; 22 ; 24 ; 27 ; 29) du volet (11 ; 12) est surmoulé(e) en même temps qu'une lèvre périphérique d'étanchéité (25) dudit volet.7. Installation according to any one of claims 2 to 6, in which each housing / protuberance (21; 22; 24; 27; 29) of the flap (11; 12) is overmolded at the same time as a lip. sealing device (25) of said flap.
8. Installation selon l'une quelconque des revendications précédentes, dans laquelle la tige de liaison (16) est rectiligne et rigide.8. Installation according to any one of the preceding claims, in which the connecting rod (16) is straight and rigid.
9. Installation selon l'une quelconque des revendications précédentes, dans laquelle les volets (11 , 12) sont reliés deux à deux par plusieurs tiges de liaison (16).9. Installation according to any one of the preceding claims, in which the flaps (11, 12) are connected two by two by several connecting rods (16).
10. Installation selon l'une quelconque des revendications précédentes, caractérisé en ce que les volets (11 , 12) sont parallèles entre eux. 10. Installation according to any one of the preceding claims, characterized in that the flaps (11, 12) are mutually parallel.
11. Installation selon l'une quelconque des revendications précédentes, dans laquelle le premier volet (11) est un volet d'orientation de l'air en direction d'un pare-brise de véhicule et le second volet (12) est un volet d'orientation de l'air en direction d'une partie basse de l'habitacle, par exemple une zone de placement des pieds d'un occupant du véhicule. 11. Installation according to any one of the preceding claims, in which the first flap (11) is an air orientation flap towards a vehicle windshield and the second flap (12) is a flap orienting the air towards a lower part of the passenger compartment, for example a zone for placing the feet of an occupant of the vehicle.
12. Véhicule muni d'un habitacle équipé d'une installation 10 de chauffage et/ou de climatisation selon l'une quelconque des revendications précédentes. 12. Vehicle provided with a passenger compartment fitted with a heating and / or air conditioning installation according to any one of the preceding claims.
EP02747534A 2001-06-18 2002-06-13 Heating and/or air-conditioning unit with moving flaps for the passenger compartment of a motor vehicle and motor vehicle with said unit Expired - Lifetime EP1438205B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0107941A FR2825948B1 (en) 2001-06-18 2001-06-18 HEATING AND / OR AIR CONDITIONING SYSTEM PROVIDED WITH MOBILE SHUTTERS FOR A COCKPIT OF A MOTOR VEHICLE, AND VEHICLE EQUIPPED WITH SUCH AN INSTALLATION
FR0107941 2001-06-18
PCT/FR2002/002035 WO2002102614A1 (en) 2001-06-18 2002-06-13 Heating and/or air-conditioning unit with moving flaps for the passenger compartment of a motor vehicle and motor vehicle with said unit

Publications (2)

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EP1438205A1 true EP1438205A1 (en) 2004-07-21
EP1438205B1 EP1438205B1 (en) 2011-03-16

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EP02747534A Expired - Lifetime EP1438205B1 (en) 2001-06-18 2002-06-13 Heating and/or air-conditioning unit with moving flaps for the passenger compartment of a motor vehicle and motor vehicle with said unit

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EP (1) EP1438205B1 (en)
AT (1) ATE501875T1 (en)
BR (1) BR0205615A (en)
DE (1) DE60239479D1 (en)
ES (1) ES2362997T3 (en)
FR (1) FR2825948B1 (en)
WO (1) WO2002102614A1 (en)

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US6780443B1 (en) 2000-02-04 2004-08-24 Takasago International Corporation Sensate composition imparting initial sensation upon contact

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
FR2875744B1 (en) * 2004-09-28 2009-11-27 Valeo Climatisation DEVICE FOR HEATING, VENTILATION AND / OR AIR CONDITIONING FOR A VEHICLE HABITACLE COMPRISING INTEGRATED CONTROL MEANS
EP4357171A1 (en) * 2022-10-21 2024-04-24 DENSO THERMAL SYSTEMS S.p.A. Assembly comprising a rotating element and a tie-rod

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Publication number Priority date Publication date Assignee Title
DE4223727C2 (en) * 1992-07-18 1995-06-08 Daimler Benz Ag Device for adjusting a flap arranged in a flow channel
DE4302504C1 (en) * 1993-01-29 1994-06-09 Daimler Benz Ag Air control device for heating, air-conditioning or ventilation systems in road vehicles - has air guide channel in which is pivotable air valve for controlling air throughput cross-section
FR2740517B1 (en) * 1995-10-26 1997-12-05 Valeo Climatisation CONNECTING ROD FOR MOVEMENT BETWEEN A DRIVING MEMBER AND A DRIVEN MEMBER, PARTICULARLY FOR A MOTOR VEHICLE HEATING AND / OR AIR CONDITIONING INSTALLATION
FR2752775B1 (en) * 1996-09-05 1998-11-06 Valeo Climatisation DEVICE FOR CONTROLLING A SHUTTER FOR A MOTOR VEHICLE HEATING AND / OR AIR CONDITIONING SYSTEM
FR2757594B1 (en) * 1996-12-19 1999-04-02 Valeo Climatisation DEVICE FOR CONTROLLING AIR INLET SHUTTERS, PARTICULARLY FOR A VEHICLE AIR CONDITIONING SYSTEM

Non-Patent Citations (1)

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See references of WO02102614A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6780443B1 (en) 2000-02-04 2004-08-24 Takasago International Corporation Sensate composition imparting initial sensation upon contact

Also Published As

Publication number Publication date
ES2362997T3 (en) 2011-07-18
EP1438205B1 (en) 2011-03-16
WO2002102614A1 (en) 2002-12-27
BR0205615A (en) 2004-01-13
DE60239479D1 (en) 2011-04-28
ATE501875T1 (en) 2011-04-15
FR2825948A1 (en) 2002-12-20
FR2825948B1 (en) 2003-08-15

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